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From the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) comes this compliance aid to help HVAC workers adhere to the ASHRAE standard for ventilation for acceptable indoor air quality. It performs minimum ventilation rate calculations based on the 2007 and 2010 versions of the standard.


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July 2016

This Month in Professional Builder


Two of the largest, most significant buyer groups are in different stages of life, yet are often drawn to similar features in a home. Here’s a look at those intersecting tastes—and how to maximize them.

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